VOA慢速英语 维他命:维持健康的保障

　　Different vitamins are found in different foods -- grains, vegetables and fruits, fish and meat, eggs and milk products. And even foods that contain the same vitamins may have them in different amounts. Experts say this is why it is important to eat a mixture of foods every day, to get enough of the vitamins our bodies need.

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　　VOICE TWO:

　　This SCIENCE IN THE NEWS program was written by Brianna Blake. I'm Faith Lapidus.

　　VOICE ONE:

　　And I'm Bob Doughty. Join us again next week for more news about science in Special English on the Voice of America.

　　一、词汇讲解

　　1. substance n.物质; 主旨; 要旨; 实质

　　例句：Soil consists of various chemical substances.

　　土壤由各种化学物质组成。

　　The substance of their talk is condensed into a paragraph.

　　他们谈话的要旨被压缩成一段话。

　　2. hull n.壳, 皮, 船体 vt. 去壳

　　例句：Some fruits and seeds have hulls.

　　有些水果和种子有外壳。

　　The hull of a ship loomed up suddenly through the fog.

　　一条船的船体突然黑压压地在雾中出现。

　　3. Beriberi n. 脚气病; 脚气

　　4. citrus n. 柑橘属果树

　　5. Amine n. 胺

　　6. Thiamine n. 硫胺(维生素B1)

　　7. scurvy n. 坏血病

　　8. Rickets n. 软骨病,佝偻病,驼背

　　9. Pellagra n. 糙皮病烟酸缺乏症